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Ok how about an example of what you were talking
about?
d
Seriously ? ... A rotational system is different in scope then
what I thought was being discussed here which appears to be a rotating
universe of tradables that have some life and get traded intraday
based on them meeting some form of buy & sell rules.
--- In
amibroker@xxxxxxxxxxxxxxx, "dingo" <dingo@xxx> wrote: > >
How about an example of how to do that using a sharpe ratio of each
security > and maybe trade on a rotational basis every month?
> > Seriously. > > d > >
> _____ > > From:
amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
Behalf > Of Fred > Sent: Tuesday, April 18, 2006 1:37 PM >
To: amibroker@xxxxxxxxxxxxxxx > Subject: [amibroker] Re: System
Performances > > > If the list is a result of some
analysis you do then you can assign > a PositionScore to each
security for each bar. This would yield a > constantly changing
and potentially prioritized list of available > securities to be
traded. > > --- In amibroker@xxxxxxxxxxxxxxx, "Ed Hoopes"
<reefbreak_sd@> > wrote: > > > > As I mentioned
in the first post - I have been trading this system > for >
> about 1.5 years. The first quarter of this year had no
severe > > declines in the market, so the Max DD looks better than it
really > is. > > Typically the system goes to 100%
cash after about a 5% drawdown. > > > > There is
another major component in my trading system that I didn't > >
mention - that of market timing. I use stock index futures (ES, >
YM, > > ER2, NQ) to hedge based on 6 indicators. This hedging,
while not > > perfect, reduces the drawdown considerably so the
system plus > hedging > > results in about 4%
drawdowns. > > > > On the subject of drawdowns, there has
not been a >10% market > > correction in over three years.
Since I have only traded this > system > > for 1.5 years, I
don't know what will happen when we eventually get > > one of
these more typical market declines. > > > > The main
reason for not posting a longer trading history is that > the >
> stock list is updated every couple of weeks, which actually >
improves > > results. I used the list that was current as of
Dec 31, 2005 for > this > > test. I don't know how
to simulate a constantly changing list of > > stocks in the
backtester. > > > > Reef-Break > > > >
> > > > --- In amibroker@xxxxxxxxxxxxxxx, "Phsst"
<phsst@> wrote: > > > > > > Fred's point is
accurate IMO.... > > > > > > If the Trader has spent
blood, sweat and tears over a period of > years > > >
building up a serious trading equity, then a 28% System Drawdown >
would > > > be demoralizing (only after causing a serious case of
"Butt > Pucker"). > > > > > > A subsequent
post from Ed showed a 'Max Sys DD = -3.6%', but only > > >
included 48 trades... which because of the small number of trades >
> > seemed to me to be statistically irrelevant. > > >
> > > > > > --- In amibroker@xxxxxxxxxxxxxxx, "Fred"
<ftonetti@> wrote: > > > > > > > > A
Comment and a suggestion ... > > > > > > > > -
DrawDowns ... I could be wrong but I suspect most people > can't
> > > > tolerate 28% DD's ... To bring that number down to the
point > where > > > > at least some people would be
comfortable with it using real > money > > > > one
would I think have to cut it half. Doing that with an > existing
> > > > system by restricting how invested one is will result
in the > CAR > > > > being reduced to the square root
of its original number. > > > > > > > > -
Objective Testing ... Take your data, cut in half ... > Optimize
> > > > your system over half of the data and then test the
parameter > values > > > > on the other half.
This rudimentary view of out of sample > testing > > >
> will give you some idea of what you are likely to experience > in
real > > > > trading as opposed to totally in sample
results. > > > > > > > > --- In
amibroker@xxxxxxxxxxxxxxx, "intermilan04" > <intermilan04@>
> > > > wrote: > > > > > > > >
> > Since I have optimized my system between 1996-2006, I guess
> the > > > > > answer would be the same time
period. > > > > > > > > > > --- In
amibroker@xxxxxxxxxxxxxxx, "Fred" <ftonetti@> wrote: > > >
> > > > > > > > > That doesn't answer my
question ... > > > > > > > > > > >
> In the development of the system what range of data ( time >
> > > period ) > > > > > > did you use ?
The same time period ? An earlier one ? > > > > > >
> > > > > > --- In amibroker@xxxxxxxxxxxxxxx,
"intermilan04" > <intermilan04@> > > > > >
> wrote: > > > > > > > > > > > >
> > The numbers are the result of backtesting my system with >
> > > > > > NASDAQ and NYSE tickers (around 7000 tickers)
between > > > > > > > 1996/1/1~2006/1/1. > >
> > > > > > > > > > > > --- In
amibroker@xxxxxxxxxxxxxxx, "Fred" <ftonetti@> > wrote: >
> > > > > > > > > > > > > > >
Are the numbers you posted in sample or out of sample ? > > >
> > > > > > > > > > > > > --- In
amibroker@xxxxxxxxxxxxxxx, "intermilan04" > > > >
<intermilan04@> > > > > > > > >
wrote: > > > > > > > > > > > > >
> > > > > I know it depends on what you want personally for
> > > > risk/reward, > > > > > > but
> > > > > > > > I'm > > > > >
> > > > curious as to what other people's systems (developed
> in > > > > > > Amibroker) > > >
> > > > > are > > > > > > > > >
performing like. You don't have to share your code > or the >
> > > idea > > > > > > behind > > >
> > > > > > your system (unless you want to), but I'm
curious. > > > > > > > > > > > >
> > > > > > Over the last 10 years, say, what is your annual
> profit %, > > > > max > > > > >
> > > > drawdown, % winning trades, etc.? > > > >
> > > > > > > > > > > > > > I
have a long system that has returned around 110% > since > >
> > > > 1996. Its > > > > > > > >
> winning % is 47%, and the system drawdown is 28%. > It is
a > > > > > > > > > reversal-based,
swing-daytrade system. > > > > > > > > > >
> > > > > > > > > > > > >
> > > > > > > > > > > > > >
> > > > > > > > > > >
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